This happened early in February, and from that moment Mme. Blanche did not take a single step without being watched. Not a letter reached her that her husband had not previously read.

And she had not the slightest suspicion of the constant espionage to which she was subjected.

Martial did not leave his room; he pretended to be ill. To meet his wife and be silent, was beyond his powers. He remembered the oath of vengeance which he had pronounced over Marie-Anne’s lifeless form too well.

But there were no new revelations, and for this reason: Polyte Chupin had been arrested under charge of theft, and this accident caused a delay in the execution of Lacheneur’s plans. But, at last, he judged that all would be in readiness on the 20th of February, Shrove Sunday.

The evening before the Widow Chupin, in conformance with his instructions, wrote to the duchess that she must come to the Poivriere Sunday evening at eleven o’clock.

On that same evening Jean was to meet his accomplices at a ball at the Rainbow—a public-house bearing a very unenviable reputation—and give them their last instructions.

These accomplices were to open the scene; he was to appear only in the denouement.

“All is well arranged; the mechanism will work of its own accord,” he said to himself.

But the “mechanism,” as he styled it, failed to work.

Mme. Blanche, on receiving the Widow Chupin’s summons, revolted for a moment. The lateness of the hour, the isolation of the spot designated, frightened her.